Albert l



2 Sheets--Sheet 1.

(No Model.)

4 A. L. GOODENOW.

HOT AIR FURNAGE. No. 356,392. Patented Jan. 18, 1887.

mungnm nl univr www". flmlllislill wunn i si E .i ii i 'n i i sii i in ts :i: e s l.: i l :Ei i i :si

www)

w ,981km .lLLllLLlllllw lf././///////////////////s//////////////M//MM/ll(No Model.) z sheets-sheen 2. A.' L. GOODENOW.

HOT AIR "FURNAGR Patented Jian. V18j-1887.

N. PETERS, PMn-Uhogrlphar. Wuhingiun. DAC.

linnen STATES PATENT OFFICE.

ALBERT L. GOODENOW, 0F UIIOA, NEW YORK.

HOT-AIR FURNACE.

SPECIFICATION forming part of Letters Patent No. 356.392, dated January1s, 1887.

v Application filed May 3, 1884.` Serial No. 130,195. (No model.)

.To all whom t may concern:

Be it known that I, ALBERT L. GoonENoW, of the city of Utica, in thecounty ot' Oneida and State of New York, and a citizen of the UnitedStates, have invented a new and useful Improvement in Hot-Air Furnaces;and I do hereby declare the following to be a full, clear, and exactdescription of the same, reference being had to the accompanyingdrawings, and to the letters and figures marked thereon.

My invention relates to hot-air furnaces; and it consists in certaindetails of construction and arrangement hereinafter described, and morespecilically pointed out in theacconipanying drawings, in Which- Figurel is a verticalcentral section of the entire furnace; Fig. 2, ahorizontal section on the line C D of Fig. l; Fig. 3, a horizontalsect-ion on line G H of Fig. l; Fig. 4, a horizontal section on line A Bof Fig. l; Fig. 5, aver tical crosssection of the ash-pit base, Fig. 6,

va perspective view (reduced) of the upper ire-pot; Fig. 7, a partlyhorizontal section on the line E F, Fig. l; Fig. 8, a perspective View(reduced) of the lower tire-pot; Fig. 9, side elevation of one of theradiating wings.

The object of my invention is to produce a convenient compact furnaceaiiording a large amount of radiating-surface in a small space, and onethat `will produce the maximum amount of heat required from a givenamount of fuel, also onein which the iiues may be readily andconveniently freedfrom dust and ashes without diffusing same throughoutthe surrounding atmosphere.

In constructing my furnace I provide an ash-pit base, A,(sho\vn in Figs.l, 3, and 5,) having a ilanged circle, c', to receive the circularpart-of the ash-pit, also an exterior ring or flanged?, to which theouter shell of the furnace is fitted. Upon this base is placed theash-pit casing, the walls of which are repre-v sented by a, Figs. 3 and5. At the top and rear of the ash-pit is a flue-collar, a, and over thecenter of the ash-pit is the grate G, vthe particular construction ofwhich is described in another pending application.

Mounted upon the ash-pit is the lower lirepot, B, (shown in Fig. 8,) andconsisting of a ring provided with an opening in front for the purposeof permitting cinders, &c., to be raked Fitted upon the upper surface ofthe lower i fire-pot is a ring, C, corresponding in circumference withthe furnace and having an inner groove, b2, for the reception of theupper fire'- pot, F, and an outer groove, b3, for the outer Wall orshell of the furnace. Upon this ring is mounted the upper fire-pot, F,which is provided with vertical openings or slits f', through whichproject the radiating Wings f f. These wings are confined in the slitsby shoul-` ders f 2 on their inner ends, which rest against the interiorwall of the upper fire-pot, and between these shoulders are placedfire-bricks s, which form the inner lining of the nre-pot and hold theWings firmly in place.

Upon the top of the upper fire-pot and inclosing same is a flanged ring,a, which forms a seat for the lower combustion-dome, M. Above this domeand resting upon it is the upper combustion-dome, M', over which andsupported by itis a chamber or space, Z, opening into the circularradiating ilue M, surrounding and inclosing the same, and provided Witha smoke-exit flue, IVF.

Between the ash-pit and circular radiating flue at the rear of thefurnace is a direct-draft fine, M2', provideduwith a damper, t, which isoperated by a rod or handle, O, extending to the front of the furnace.

M3 is the feed-section, and in front of the upper fire-pot,within thecasing, is located a water-vat, M, designed to contribute the requisitemoisture to the heated air diffused by the furnace.

M7 represents the outer shell or casing of the furnace, and M8 thecircular radiating flue.`

When desired to operate my furnace, the fire is started and the coalintroduced throughthe feed-section. Air is 4then admitted through thefront of the ash-pit, and passes up through the grate to the fire. Theproducts of combustion pass up through the combustion-chambers M, M',and Z into the radiating flue M, thence around both sides of sameto thesmoke- IOO exit M5. `Meantime the heat is reflected from all theradiating-surfaces of the fire-pots,wings f, combustion-domes, andcircular radiating flue, and it will be observed that an exceedinglylarge amount of radiating-surface is afforded in a small space. Then itis desired to shake down theiire, the damper in the draftflue M2 isopened by means of the handle O, which affords a direct draft from therear of the ash-pit to the circular radiator-flue, and causes all dustand fine ashes to pass up and out through the smoke-exit M5.

- All einders may be raked off the grate through the opening in thefront of the repot into the housing K, where they are permitted to dropdown into the ashpit through the opening in its top, the slide p beingwithdrawn by means of its handle or rod R.

Nhen desired to clean out the circular radiator, a brush may be insertedin the smokeexit and the dust, soot, and ashes brushed back from eitherside to the rear, where they drop down through the draft-fine M2 intothe ash-pit, the damper t being opened for the purpose.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

l. A furnace having an outer shell, an ashpit, and ash-pit base, afire-pot made in two sections, the upper section having shoulderedradiating flanges, said ash-pit base having an interior ianged circle toreceive the circular part of the ash-pit and an exterior ring or ilangeto receive the furnace-shell, all arranged and combined substantially asand for the p n rpose described.

2. The combination, with the furnaceshell, of the ash-pit base having anexterior flanged circle, the ash-pit casing provided with a fluecollarand central grate, a fire-pot made in two sections, the upper sectionbeing provided with vertical openings and having shouldered iiangesprojecting through said openings, a colnbustion-dome, a circularradiating fiue,and adust-iiue connecting the ash-pit and radiating flue,substantially as and for the purpose described.

3. The combination, with the furnace-shell, of' the ash-pit base, thelire-pot made in two sections, one of which is provided with shoulderedradiating flanges, a combnstioadome, a radiating fine, a supporting-ringmounted upon the lower section of the fire-pot, said ring having aninner groove or seat for the reception of the upper section, and anexterior groove for the reception of the furnace-shell, substantially asand for the purpose set forth.

el. A furnace having a fire-pot made in two sections, the upper sectionlined with firebrick and provided with vertical openings and shoulderedfianges projecting through said openings, in combination with theash-pit, combustion-dome, and dust-flue, substantially as and for thepurpose set forth.

5. The combination, with a lirepot made in two sections, the upperprovided with vertical openings or slits in its sides, of the removableradiating wings having shoulders on their inner ends, which rest againstthe interior wall of the upper section, substantially as and for thepurpose described.

6. The combination, with a lire-pot made in two sections, the uppersection having vertical slots and shouldered radiating fian'ges, of 7 5the lower combustion-dome, a hanged ring on the upper section of theiirevpot forming a seat for the lower combustion-dome, a circularradiating flue, a chamber opening into said flue, and a smoke-exit flue,substantially as and for the purpose described.

7. The combination, with a furnace, of the ash-pit, the circular'radiator-,the smokeexitfine, the draft-flue connecting the ash-pit andradiator, and a damper in said draft-line providedwith a handleprojecting from the front of the furnace, whereby the damper is operatedfrom the front ol' the furnace, substantially as and for the purposedescribed.

Dated and signed at Utica, New York, this 1st day of May, 1884.

ALBERT L. GOODENOVV.

Witnesses:

C. D. F. Hoxn, GEORGE P. PERRY.

